Sand cleaner



ra 9 5, oo 4 4a 1 um C A ,V 0 K oo. 2 9 1 na. l L m SAND CLEANER.

3 SHEETS SHEET 2.

FILED IAN. 21,1922.

J. KOVACH.

SAND CLEANER. FILED 1AN.21,1.\122.

Mar. 13, 1928.

3 SHEETS-SHEET 3.

Patented Mar. 13, 1923.

AUllilrli'l" ED STATES JOHN KO'VACH, OF EAST CHICAGO, INDIANA.

SAND CLEANER.

Application iled 'anuary 21, 1922.

To all whom-it may omwem: b Be it :known that I, JOHN Komen, a citizen of formerly Austria-Huugary. now Ru- 'merlin residing at `East Chicago, in the county of Lake and State of Indiana, have invented certain vnew and useful Improve ments in Sand Cleaners; and I do hereby `.declare :the following to Vhe a full, clezmand kexact description of the invention, such as swillenable others skilled in the art to which it npfpertains to make Pand use the saine.

This invention relatos to new and useful improvements in sand cleaners and has for its primary ohjeect the provision Vof a device of the above stated character which is adapted `to screen the sand for removing trash. stones and other Vforeign mutter so that-tile sand will he Ydelivered in a fine and clean condition.

Another obiect of this invention is the provision of means whereby the foreign matter collected by the screen may be removed end deposited laterally from the sand.

A further object of this invention is the provision of a sand cleaner of the above stated character which will be simple, durable and eHici-ent, and which may be manufactured and sold at a comparatively iow cost. I

With these and other objects in view, as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will he hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the vfollowing description and accompanying drawings, in which:

Figure 1 is a side elevation, illustrating a sand Crusher and cleaner constructed in accordance with my invention and showing the screen carriage in dotted lines,

Figure 2 is a top plan View, illustratingthe device,

Figure 3 is a longitudinal sectional view, illustrating the association of the crushing rollers with the screen, and

Figure 4 is a detail view, illustrating the screen in the act of dumping foreign matter therefrom.

Figure 5 is a detail sectional View illustrating the catch for holding the screen in a closed position,

Serial No. 530,879.

Figure 6 is an enlarged detail view illustrating the same,

Figure is an enlarged fragmentary `sectional view illustrating the catch.

Referring in detail to the drawings, the numeral 1 indicates a supporting iframe supported at its corners by legs 2 and is provided at one end with a. motor bed 3 on which is mounted a motor or power source 4 of amr conventional type and which is provided with a drive shaft 5, the free end of which is journaled in a. hearing 6 oarried b the motor bed 3. A driven shaft 7 Vexten s parallel with the drive shaft 5 and is journaled in bearings 8 carried by the vframe 1 end has an operative connection with the drive shaft 5 by gears 9. The driven shaft intermediate its ends is provided With a sprocket Wheel 10 and with sprocket Wheel 11 at one end alud which is disposed bevond one side of the frame 1 and engaged bjv a sprocket chain 12 that is in turn trained over a, sprocket wheel 13 secured to a crushing roller shaft 14. The crushing roller shaft 14 extends transversely of the frame and intermediate the ends of the letter and has associated therewith a crushing roller shaft 15 connected to the shaft 14 b v gears I6 so that said shafts will rotate in opposite directions. The crushing roller shafts 14 and 15 are journaled in bearings 17 carried hy the frame 1 and have secured thereto crushing rollers 18 and the latter are provided with annular crushing ribs 19, the side walls of which are Vangularly related for the purpose of crushing large particles of sand and also for crushing lumps of sand fed to the rollers from s. Vhopp-er arranged directly above the ruiters and supported by an auxiliary frame Q1 mounted on the main frame 1. The hop er 20 is constructed of sections secured toget er by rivets 21 and the sand containing foreign metter is delivered into the hopper in any manner desired and falls' to the crush- 1'00 The screening mechanism '22 consists of a 105 rectangular carriage frame 23 provided on its side. walls adjacent the ends of the latter with axles 24 on which flanged wheels 25 are journaled and the wheels engage tra-ck elements 26 carried by the lower edges of the ,110

frame l and which extend inwardly of the side Walls of said Vtrame l. The axles are secured to the carriage trame 23 by bolts. A screen 2T, constructed from toraminous material and provided with a marginal flange is hinged to one end of the cary riage frame so, as shown at 29. and supported in engagement with the other end ot the frame by a catch 30. Connecting rods 3l are pivotally connected to one end of the carriage frame and to cranks 3Q of a crank shaft 33 which is journaled in bearings Si carried by the lower edge of the trame l, so that the crank shaft is disposed in a plane below the driven shaft T and the crank shaft is provided with a sprocket Wheel 35 over which a sprocket chain 36 is trained and the latter is trained over the sprocket wheel 11 Afor the purpose of imparting rotation to the crank shaft from the driven shaft '7. The rotation of the crank shaft is adapted to impart a reciprocatory motion to the screening device 22 so that the sand and foreign matter falling onto the screen from the crushing rollers will be screened and the large particles of sand and foreign matter will remain on the screen while the clean or fine sand falls through the screen and accumulates in a pile underneath the frame l.

nclined braces 37 are secured to the frame 1 and to a pair of the legs 2 and are provided with o enings 38 whereby a screen supporting ro ler 39 may be adjusted along the braces. The roller 39 is employed for the purpose of supporting the screen in an inclined position when desiring to dump or remove the foreign matter which has accumulated thereon. To remove the foreign matter from the screen, the carriage or screening mechanism 22 is positioned so that one end of the screen is disposed above the roller 39 and the catch 30 is manually released to permit the screen to swing downwardly in 'engagement with the roller 39 and a movement of the carriage frame towards the end of the frame l opposite to where the power source is located. causes the screen to assume a downwardly inclined position and permits the foreign matter thereon to roll o' the screen laterally of the pile of sifted sand.

The catch 30 consists of an arm 40 secured to the marginal frame 28 of the screen and rejects beyond one end of the frame 5 and) has pivoted thereto a spring pressed catch arm 4l that engages a keeper 42 car ried by the carriage frame so that the free or unhinged end of the screen will be supported in enga ment with the carriage frame. The ca arm 41 extends through a brac-liet 43 and vis engaged by a spring 44 carried by the bracket and the latter is Ycarried by the carriage frame. A handle 45 is provided on the catch arm so that a person may readily disengage the same when dcsiring to free the screen.

W'liile have shown and described the preferred embodiment of my invention. it will be understood that minor changes in construction. combination and arrangement closing position. and a transverse roller adi just-ably secured to the frame and adapted to be engaged by the screen when treed to cause the screen to assume a downwardly inclined position on the movement oi" the carriage in one direction.

2. A cleaning mechanism comprising a frame.y a carriage reciprocally mounted on the frame` a hinged screen carried by said carriage, a catch for holding the screen in carriage closing position. a brace connecting said frame with one of its supporting legs, said brace having perforations therein. a transverse roller adjustably mounted in the perfor-ations ot said brace and adapted to be engaged by the screen when the latch is released` to cause the screen to assume a down-- ward inclined position on movement of the carriage in one directionq whereby the contents of the screen Will be discharged at a point a distance Jfrom the point of discharge o'l" material passing through the screen.

2, A reciprocating cleaning screen com" prising a wheeled carriage. a screen hinged to said carriage at one end thereoi. a catch for holding tbe screen in closed position. said catch being located at the opposite end of said carriage, and comprising a pivoted arm having connection with said hinged screen at its free end, a spring to urge said pivotcd arm into engagement with-a lng carried by said carriage, and manually operated means to release said latch from said lug.

ln testimony whereof I aiiix my signature in presence of two witnesses.

J( )HN KVACH.

Witnesses:

Lome Buzon, WILLIAM A. FUZY.

llO 

